Next Article in Journal
Development of an Integrated Power Distribution System Laboratory Platform Using Modular Miniature Physical Elements: A Case Study of Fault Location
Previous Article in Journal
A Protection System for Improved Ring-Bus DC Microgrids
Open AccessArticle

Alternative Methodology to Calculate the Directional Characteristic Settings of Directional Overcurrent Relays in Transmission and Distribution Networks

Departamento de Ingeniería Eléctrica, Facultad de Ingeniería, Universidad de Antioquia, Calle 70 No 52-21, Medellín 050010, Colombia
*
Author to whom correspondence should be addressed.
Energies 2019, 12(19), 3779; https://doi.org/10.3390/en12193779
Received: 11 September 2019 / Revised: 30 September 2019 / Accepted: 1 October 2019 / Published: 4 October 2019
When addressing the problem of calculating the settings for directional overcurrent elements, the focus is usually the determination of the pickup, time dial and operating characteristic, in order to ensure proper selectivity with adjacent protection elements, thus limiting the problem related to the settings calculation of the direction determination characteristic to the application of typical settings and general guidelines, which cannot provide a reliable measure of the suitability of such settings. The present article describes in detail an alternative methodology for determining these settings, based on a characterization of the power system where the directional protection is to be applied, through the performance of a detailed short-circuit sensitivity analysis. From this, an optimization problem is formulated and solved to obtain the main settings shaping the direction determination characteristic, and then, a series of variables are used to measure the performance of the obtained settings, and even to improve it. The obtained results show the advantages of the application of the proposed methodology over the traditional methodology, based on typical settings and general guidelines, pointing out the risks of using the later. View Full-Text
Keywords: power system protection; optimization; directional overcurrent protection; polarization methods; direction determination power system protection; optimization; directional overcurrent protection; polarization methods; direction determination
Show Figures

Figure 1

MDPI and ACS Style

Jaramillo Serna, J.J.; López-Lezama, J.M. Alternative Methodology to Calculate the Directional Characteristic Settings of Directional Overcurrent Relays in Transmission and Distribution Networks. Energies 2019, 12, 3779.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop